| 摘要 |
A stent or stent-graft deployment device and in particular a pusher member for such a device are disclosed. The pusher member ( 62 ) is provided with a reduced outer diameter section ( 64 ) and a pusher head ( 60 ). The reduced outer diameter section ( 64 ) reduces the thickness of the wall of the pusher member ( 62 ), with the result that the rigidity of the pusher member ( 62 ) is reduced at its distal end. This reduction in rigidity reduces the transition in flexibility between a guidewire catheter ( 24 ) extending through and beyond an inner channel of the pusher member ( 62 ) and the distal end of the pusher member ( 62 ). Thus, there is a gradual change in rigidities at the junction between these two components, which can reduce the possibility of kinking. |
